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Magnetar Financial’s Oceaneering OII Stock Holding History

Magnetar Financial’s Portfolio OII Stock Details OII Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-17,181
Closed -$356K – 1098
2025
Q2 		$356K Buy
+17,181
New +$331K ﹤0.01% 646
2018
Q2 		– Sell
-16,829
Closed -$312K – 642
2018
Q1 		$312K Buy
+16,829
New +$337K 0.01% 444
2017
Q4 		– Sell
-64,110
Closed -$1.68M – 838
2017
Q3 		$1.68M Buy
+64,110
New +$1.55M 0.03% 168

Other funds holding OII

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Brown Advisory
Brown Advisory Baltimore, Maryland $60.9B AUM 15.24% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $24.3B AUM 34.41% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
GF
Greenhouse Funds Baltimore, Maryland $2.23B AUM 12.38% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Magnetar Financial's OII Position: Q3 2025 in Review

Magnetar Financial sold out of Oceaneering (OII) in Q3 2025, closing a stake of 17,181 shares — an estimated $356K sold.

Magnetar Financial first reported a position in OII in Q3 2017 and held it in 3 quarters. The position peaked at $1.68M in Q3 2017. 301 funds tracked by Wall St. Rank hold OII as of Q3 2025.

  • Magnetar Financial reported no remaining Oceaneering position as of Q3 2025 after selling out during the quarter.
  • Magnetar Financial sold 17,181 Oceaneering shares in Q3 2025, an estimated $356K.
  • Magnetar Financial first reported a position in Oceaneering in Q3 2017 and held it in 3 quarters.
  • Magnetar Financial's Oceaneering position peaked at $1.68M in Q3 2017.
  • 301 funds tracked by Wall St. Rank held Oceaneering as of Q3 2025.

Based on Magnetar Financial's 13F filing for Q3 2025, filed 13 Nov 2025.